COATS 7665 AX/EX Tire Changer - Manual (Page 12)

Aluminum and Custom Wheels
Follow instructions provided for standard steel
wheels, except:
AC. After loosening and lubricating both beads,
rotate the table top until the clamps are in the 12, 3,
6, and 9 o'clock positions (Figure 24).
AD. Clamp wheel from the outside. Position rim
edge into clamp at 12 o'clock position. Lower the
wheel and depress the clamp control pedal. Slowly
move the clamps inward until they securely contact
the outside edge of the rim.
TIP: This is usually accomplished by crouching
down in front of the tire changer, holding the wheel
with the right hand, and operating the clamp control
pedal with the left hand. This allows the operator to
watch the clamps as they move to ensure proper,
damage-free clamping.
4. Clamp the wheel to the table top as described in
item AB on page 9. Always clamp custom wheels
from the outside.
Figure 24 - Rotate Table Top to 12 O'clock
5. Depress the tire sidewall downward with the aid of
the helper foot providing clearance for the mount/de-
mount head to be positioned (Figure 25). Move swing
arm into place. Increase the horizontal distance
between the demount head and the wheel an addition-
al 1/16 to 1/8 inch with the adjustment knob.
Figure 25 - Helper Foot Depressing Sidewall of Tire
6. Lubricate upper bead liberally. Use the bead
roller tool to help push the tire bead down so
bead area is easier to reach for lubrication
(Figure 26).
Figure 26 - Lubricate Upper Bead
7. Locate the valve stem just before the demount
head before proceeding (Figure 27).
Figure 27 - Position Valve Stem Under Demount Head
8. Place the helper foot opposite the demount
head and push the bead into drop center. Insert
bead lifting tool between knob on demount tool
and tire bead Figure 28). Use roller tool to pro-
vide clearance.
Figure 28 - Insert Bead Lifting Tool
9. Rotate lifting tool down over wheel to lift bead
up and over the knob and at the same time
remove helper foot (Figure 29).
Figure 29 - Rotate Lifting Tool Down for Demount
Demount Head
Valve Stem
10 • 7050/7055/7060/7065 AX/EX Rim Clamp Tire Changer